R3F panel
radiators are manufactured in the USA from cold
rolled steel and consist of two panels with three
sets of fins. The panels are finished in a gloss
powdercoat, and are available in many standard
colors and over 100 optional colors. These panels
are made in lengths from 2’-0” to 29’- ”, and
heights from 3” to 29”. Standard piping connections
are 1/2” NPT for inlet and outlet piping, and 1/8”
NPT for vents (3/4” NPT inlets and outlets are
available by special order). For more complete R3F
specifications, please refer to the Runtal technical
pages.

BTUH/FT
RATINGS

Energy
efficient as well as space saving, R3F panels are
both radiant and convective. These panels provide
more comfort at a lower room temperature than
convective heaters. Various average water
temperatures (AWT) are shown here for convenience,
but for more specific conditions use the appropriate
correction factor with the 215°F rating. Please see
the technical pages for the correction factor best
suited to the design conditions.

BTUH/ft Ratings @ 65°F EAT

MODEL

HEIGHT
inches

DEPTH
inches

215°F

180°F

140°F

R3F-1

2.8

4.8

1300

920

530

R3F-2

5.7

4.8

2020

1420

820

R3F-3

8.6

4.8

2580

1810

1040

R3F-4

11.5

4.8

3090

2170

1250

R3F-5

14.4

4.8

3790

2670

1530

R3F-6

17.3

4.8

4270

3000

1720

R3F-7

20.2

4.8

4738

3335

1909

R3F-8

23.1

4.8

5200

3660

2095

R3F-9

26.0

4.8

5451

3836

2196

R3F-10

29.0

4.8

5691

4005

2293

MOUNTING SYSTEMS

Wall
mounting with a continuous mounting system (brackets
included) is standard on all R3F panels. Free
standing, cantilever and recessed wall mounting
systems are also available. Please see the R3F
technical pages for more complete mounting details.